Colour Titanium Wheel Lug Bolt for Racing Car — Lightweight Performance Fastener with Custom Anodized Finish

The Colour Titanium Wheel Lug Bolt for Racing Car is a precision-engineered fastening component built from Aerospace Grade 5 Titanium (Ti-6Al-4V), offering a tensile strength of 950–1050 MPa and a density of just 4.43 g/cm³. That means up to 45% lighter than steel equivalents — directly improving unsprung weight, suspension response, and rotational acceleration. Available with PVD or anodized color finishes, these bolts combine race-level structural performance with visual customization. Manufactured in Baoji — China's Titanium Valley — by Baoji Huacan New Metal Materials Co., Ltd., with 10+ years of titanium precision machining experience.

Parameter	Details
Material Grade	Grade 5 (Ti-6Al-4V), Grade 2, Grade 9, Grade 23; other grades available upon request
Material Standards	ASTM B348, AMS 4928, DIN
Tensile Strength	Up to 950–1,050 MPa*
Yield Strength	Up to 880 MPa*
Density	Approx. 4.43 g/cm³
Thread Specifications	Custom metric threads, including M12 × 1.5, M14 × 1.25, and M14 × 1.5
Length	Custom lengths according to drawings or specifications
Weight	Customized; approx. 42 g at a reference length of 46 mm
Thread Type	Rolled threads for improved thread integrity
Surface Finish	PVD coating, anodizing, polishing, or sandblasting
Color Options	Rainbow, gold, blue, black, and custom colors
Manufacturing Processes	CNC turning, precision thread machining, and forging
Dimensional Tolerance	According to technical drawings or agreed specifications
OEM / ODM Services	Available

Titanium Lug Bolts

· 40–45% weight reduction versus steel lug bolts, directly lowering unsprung rotating mass

· 950–1050 MPa tensile strength from Ti-6Al-4V alloy — exceeds Grade 8.8 steel

· PVD color coating stable up to 500°C — resists brake heat, tire smoke, and debris

· Rolled threads for superior fatigue resistance against vibration loosening

· Low thermal conductivity reduces heat transfer from rotors to hub assemblies

· Corrosion-resistant against brake dust, moisture, and road chemicals

· Custom colors support livery matching and fast pit-crew wheel identification

Product Comparison

Feature	Titanium Lug Bolt (Grade 5)	Steel Lug Bolt (Grade 8.8)	Aluminum Lug Bolt
Typical Weight	~42 g*	~75–80 g*	~25–30 g*
Tensile Strength	~950–1050 MPa*	~800–830 MPa*	~250–350 MPa*
Corrosion Resistance	Excellent; naturally corrosion resistant	Moderate; coating may be required	Good in many environments; depends on alloy and surface condition
Heat Resistance	Suitable for elevated-temperature applications; PVD finish available	Suitable for elevated-temperature applications	Lower temperature capability than titanium and steel
Thread Performance	Rolled threads available for improved thread strength and fatigue performance	Commonly available with rolled or cut threads	Generally lower thread load capacity
Weight Reduction vs. Steel	~40–45%*	Baseline	~60–65%*
Color / Finish Options	PVD, anodizing, polishing, custom finishes	Plating, coating, black oxide, etc.	Anodizing and other finishes available
Typical Applications	Motorsport, performance vehicles, racing, lightweight automotive applications	General automotive and high-load applications	Lightweight applications where lower mechanical loads are acceptable

Solutions One

Titanium Lug Bolts application

Solutions One

Titanium Lug Bolts application

Solutions One

Titanium Lug Bolts application

Solutions One

Titanium Lug Bolts application

Professional GT & Endurance Racing (WEC, GT3): Reduces unsprung weight for faster suspension reaction over curbing. Color coding aids pit crews in rapid wheel-set identification during high-pressure stops.

Time Attack & Track Day Builds: Withstands repeated high-heat braking cycles. Low thermal conductivity protects hub bearings from heat migration off glowing rotors, extending assembly life.

High-Performance Drift Cars: Handles extreme lateral loads and shock forces. High yield strength maintains fastening security under intense vibration for Colour Titanium Wheel Lug Bolt for Racing Car, while PVD coating resists corrosive tire smoke and debris exposure.

Not strength alone, racing circumstances need dependability at every spin, every braking event, every pit stop.

Grade 5 titanium (Ti-6Al-4V) has a yield strength of 880 MPa, but is much lighter than steel. This combination decreases unsprung spinning mass, which translates into a speedier turn-in response and less stress on dampers and bearings.

The coloured surface treatment is not only cosmetic. PVD (Physical Vapour Deposition) coatings boost surface hardness and lubricity to minimise galling potential against alloy hubs and are colour stable at 500°C. Anodising provides colour customisation regulated by voltage, and a dielectric barrier against galvanic corrosion.

Thread rolling – not cutting – retains the titanium’s grain structure, dramatically increasing fatigue resistance to vibrational loosening in high-stress racing circumstances.

Every bolt begins with certified Grade 5 titanium bar stock, verified by chemical composition analysis using spectrometry against ASTM B348 standards. No unqualified material enters production.

CNC turning and precision thread rolling are performed on 40+ advanced machining centers, including gantry systems. Thread rolling preserves the material's internal grain flow, which maximizes fatigue life — critical for high-vibration race applications.

Secondary procedures include deburring, surface finishing, and PVD or anodised colour treatment. PVD is performed in a vacuum chamber and coats the titanium with a thin coating of very hard material which firmly adheres to the surface without adding substantial weight.

Receiving Drawings

Annealing

Developing Machining Process

Finish Machining

Preparing Raw Materials

Deburring

Rough Machining

Deburring

Baoji Huacan has over 40 CNC lathes, machining centers and gantry systems to produce titanium bespoke parts with strict dimensional tolerances and consistent surface quality.

Annual capacity in precision machining allows for prototyping in low volumes or production in huge volumes for OEM’s. We work with 100+ worldwide customers in racing, aerospace, medical and energy.


melting	melting	forging	forging	rolling

Raw titanium is confirmed by spectrometry to ASTM B348 before to manufacture. At each step, in-process dimensional checks are conducted using CMMs, micrometres and thread Go/No-Go gauges.

We proof load and test finished bolts to tensile to ensure they exceed the 950 MPa criterion. Impact stress corrosion resistance and adhesion of PVD and anodised coatings are evaluated using Salt Spray Testing (ASTM B117).

Fluorescent Penetrant Inspection (FPI) will reveal any micro-cracks that are produced during forging or heading. Full traceability records, material certifications and inspection reports accompany every shipment.

Certifications

Baoji Huacan New Metal Materials Co., Ltd. holds ISO 9001 Quality Management System Certification, covering the full production chain from raw material intake through final inspection and shipment documentation.

All titanium materials comply with ASTM, AMS, and DIN international standards.

Mechanical Properties Testing

Inner Diameter Measurement

Ultrasonic Testing

CMM Dimensional

Mounting Hole Diameter Measurement

Quality Management System Certification

Each bolt is individually covered with bespoke foam inserts then vacuum sealed with desiccants to avoid moisture exposure during transportation. Bulk orders are delivered in hardwood boxes, solid, fully labelled and documented for hassle-free customs clearance and inventory management.

We can air freight for urgent orders for the racing season. Sea freight is economical for bulk supplies for team or distributor orders.

Q: Will the colour finish fade when the track temperatures are high?

A: PVD coatings are stable up to 500°C. Extreme brake heat above 600°C may generate subtle natural titanium colour changes that many racers consider a race proved patina, not a flaw.

Q: Is galling a risk with titanium bolts against steel hubs?

A：Raw titanium can gall under high clamping forces. PVD coatings on our bolts improve surface lubricity. Always use anti-seize paste during installation for added protection.

Q: Can I use an impact wrench during installation?

A：Grade 5 titanium handles the structural load. However, to protect the colour finish, use a soft-socket sleeve or torque manually to avoid chipping the coating surface.

Q: What torque values apply?

A：Follow your vehicle manufacturer's specifications. Because titanium has higher elasticity than steel, always use a calibrated torque wrench to avoid over-stretching the bolt.

Q: How do I order a custom specification?

A：Submit your drawing or 2D/3D model to our team. We'll confirm thread profile, length, color, and quantity within one business day.

Contact Us

Contact us at sherry@hc-titanium.comto discuss your specifications for Colour Titanium Wheel Lug Bolt for Racing Car and request a tailored quote for your racing project.